THE CELL CYCLE WORKSHEET - Download as DOC by HC120807195944


									    THE CELL CYCLE WORKSHEET                                              Name: ___Key________

Matching: match the term to the description
    A. Prophase        B. Interphase         C. Telophase       D. Metaphase          E. Anaphase

__E_ 1. The sister chromatids are moving apart.    __E_ 9. The chromosomes are moving towards
                                                                   the poles of the cell.
__B_ 2. The nucleolus begins to fade from view.
                                                   __D_ 10. Chromatids line up along the equator.
__C_ 3. A new nuclear membrane is forming
        around the chromosomes.                    __A_ 11. The spindle is formed.

__C_ 4. The cytoplasm of the cell is being         __B_ 12. Chromosomes are not visible.
                                                   __B_ 13. Cytokinesis is completed (as next cycle
__C_ 5. The chromosomes become invisible.                          begins).

__D_ 6. The chromosomes are located at the         __C_ 14. The cell plate is completed.
                equator of the cell.
                                                   __B_ 15. Chromosomes are replicated.
__A_ 7. The nuclear membrane begins to fade
                from view.                         __C_ 16. The reverse of prophase.

__C_ 8. The division (cleavage) furrow appears.    __B_ 17. The organization phase

Fill in the blank: Some will be used more than once.
     A. Prophase              D. Metaphase             G. Chromatid               J. Spindle fiber
     B. Interphase             E. Anaphase             H. Cytokinesis               K. Cell plate
     C. Telophase             F. Centromere               I. Mitosis

______B________18. What phase are daughter cells   ______I, H_______23. What are the two parts of cell
               in as a result of mitosis?                          division?

______E________19. During what phase of mitosis    ______J________24. What structure forms in
                do centromeres divide and the                     prophase along which the
                chromosomes move toward their                     chromosomes move?
                respective poles?
                                                   ______D________25. Which phase of mitosis is the
______A________20. What is the phase where                        last phase that chromatids are
               chromatin condenses to form                        together?
                                                   ______B________26. Which phase of the cell cycle
______F________21. What is the name of the                        is characterized by a non-dividing
               structure that connects the two                    cell?
                                                   ______J________27. What structure is produced
______G________22. In a chromosome pair                           when protein fibers radiate from
               connected by a centromere, what                    centrioles?
               is each individual chromosome
               called?                             ______K________28. What forms across the center
                                                                  of a cell near the end of telophase?
______B________29. The period of cell growth and     ______H________30. What is the phase where
               development between mitotic                          cytokinesis occurs?

The diagram below shows six cells in various phases of the cell cycle. Note the cells are not arranged
in the order in which the cell cycle occurs. Use the diagram to answer questions 1-7.

   ____________________1.         Cells A & F show an early and a late stage of the same phase of
      the cell cycle. What phase is it? prophase
   ____________________2.         Which cell is in metaphase? C
   ____________________3.         Which cell is in the first phase of M phase (mitosis)? A
   ____________________4.         In cell A, what structure is labeled X? centriole
   ____________________5.         List the diagrams in order from first to last in the cell cycle.
   ____________________6.         Are the cells depicted plant or animal cells? animal
                              a. Explain your answer. Cells are round, no cell plate, pinching

                              b. If it were the other type of cell what would be different in the
                                 diagrams? Square, cell plate

   ____________________7.         What is the longest phase of the cell cycle? interphase

                        8.       Why is mitosis important? Duplicate nuclear material for 2
                       daughter cells

                        9.       Predict what would happen if an individual had faulty spindle fibers.
                       Daughter cells would end up with the wrong number of chromosomes

                         10. Predict what would happen if cytokinesis was skipped. Cells would have
                       too many chromosomes; cells wouldn’t function properly because they would
                       be too big.

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